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in 1911 and collected several hitherto unknown species of plants, among them grass of the genus Rottboellia. He accompanied and guided Prof. Adolf Engler, the noted authority on African flora, on a rather fleeting trip through the region in 1913. Their trip started at Swakopmund and proceeded smoothly in a specially-commissioned railway carriage as far as Tsumeb and then south to Warmbad, covering

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